就是除了加减乘除,假设现在有一个新的符号#.
#的算法就是b#d=(b-2)(d+1).
所以(-2)#x=(-2-2)(x+1)=12 所以x=-4
For all numbers B and D,the operation #is defined by b#d=(b-2)(d+1).If (-2)#x=12,then what's the value of x
For all numbers B and D,the operation #is defined by b#d=(b-2)(d+1).If (-2)#x=12,then what's the value of x
and why please give your formula and explain.
and why please give your formula and explain.
英语人气:164 ℃时间:2020-03-28 22:52:12
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